/*
 * Copyright 2022 Nightingale Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
import { useEffect, useRef } from 'react';

const useInterval = (callback: Function, delay?: number | null) => {
  const intervalId = useRef(-1);
  const savedCallback = useRef<Function>(() => {});

  useEffect(() => {
    savedCallback.current = callback;
  });

  useEffect(() => {
    const tick = () => savedCallback.current();
    if (typeof delay === 'number') {
      intervalId.current = window.setInterval(tick, delay);
      return () => window.clearInterval(intervalId.current);
    }
  }, [delay]);

  return intervalId.current;
};

export default useInterval;
